Home / 51,644.47-77,447.26-40,680.31

Finding the Fourth Proportional to 51,644.47, 77,447.26 and 40,680.31

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Solution

The fourth proportional to 51,644.47, 77,447.26 and 40,680.31 is: 61,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,644.47 : 77,447.26 = 40,680.31 : x
  2. Step 2: Convert to fraction form
    51,644.47/77,447.26 = 40,680.31/x
  3. Step 3: Cross multiply
    51,644.47x = 77,447.26 × 40,680.31
  4. Step 4: Simplify right side
    51,644.47x = 3,150,578,545.45
  5. Step 5: Solve for x
    x = 3,150,578,545.45/51,644.47
  6. Step 6: Final answer
    x = 61,005.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.